Fatal error: Uncaught Error: Call to undefined function wp_register_tinymce_scripts() in /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/script-loader.php:664 Stack trace: #0 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/class-wp-hook.php(341): wp_default_packages(Object(WP_Scripts)) #1 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array) #2 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/plugin.php(570): WP_Hook->do_action(Array) #3 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/class-wp-scripts.php(166): do_action_ref_array('wp_default_scri...', Array) #4 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/class-wp-scripts.php(149): WP_Scripts->init() #5 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/functions.wp-scripts.php(24): WP_Scripts->__construct() #6 /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/functions.wp-scripts.php(429): wp_scripts() #7 /var in /var/www/vhosts/liescher-buehnenspass.de/httpdocs/wp-includes/script-loader.php on line 664